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Ground device used for relief well electromagnetic detection and positioning tool

A technology of electromagnetic detection and ground device, which is applied in the direction of electric/magnetic detection for well logging records, etc., can solve the problem of blank ground device, etc., and achieve the effect of simple debugging, simple design structure and convenient operation

Inactive Publication Date: 2016-04-13
CHINA NAT OFFSHORE OIL CORP +1
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Problems solved by technology

However, in the field of rescue well positioning technology in oil and gas fields, the ground device for electromagnetic detection and positioning tools for rescue wells that can combine power supply, data transmission, data processing and data display is still blank.

Method used

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  • Ground device used for relief well electromagnetic detection and positioning tool
  • Ground device used for relief well electromagnetic detection and positioning tool
  • Ground device used for relief well electromagnetic detection and positioning tool

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Embodiment Construction

[0022] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0023] LabVIEW is currently the only compiled graphical programming language in the world. It simplifies tedious, complex, and time-consuming language programming into the form of icons or menus, and connects each icon with data flow. The program is similar to a flowchart. Therefore, the programming method is simple, the hierarchy is clear, and the interface designed is easier for users to operate; in addition to the functions provided by conventional languages, LabVIEW also integrates a large number of templates for generating graphical interfaces, digital signal processing functions, rich and practical Numerical analysis function, etc., also has the driver function of various hardware devices. Therefore, it is widely used in simulation, data acquisition, instrument control, measurement analysis and data display in various industries. The control sy...

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Abstract

The invention relates to a ground device used for a relief well electromagnetic detection and positioning tool. The ground device comprises a cable which is arranged on a Martin-Decker photoelectric coder in a winding way. One end of the cable is connected with an acquisition device. The ground device also comprises a test data processing subunit, a depth data acquisition subunit, a data communication subunit and a control system. The other end of the cable is connected with the test data processing subunit. The test data processing subunit receives test data transmitted by the acquisition device arranged in a relief well and transmits the test data to the control system through the data communication subunit. The depth data acquisition subunit receives pulse data transmitted by the Martin-Decker photoelectric coder and converts the pulse data into depth data of the acquisition device in the relief well and then transmits the depth data to the control system through the data communication subunit. The control system comprises a data initialization subunit and a data display subunit. The data initialization subunit receives the test data and the depth data transmitted by the data communication subunit and respectively transmits the test data and the depth data to the data display subunit to be displayed.

Description

technical field [0001] The invention relates to the technical fields of electromagnetic field theory and virtual instruments, in particular to a ground device for electromagnetic detection and positioning tools in rescue wells. Background technique [0002] The electromagnetic method has the advantages of strong penetrating power to low-resistance overburden, large detection depth and strong resolution ability to layered media. The electromagnetic logging method can obtain the resistivity information of the formation through the electromagnetic response of the receiving coil, which has certain advantages over the traditional logging method. The use of electromagnetic logging technology can well solve the difficulties in well logging, mainly because of two reasons. On the one hand, the electrical and magnetic properties of the casing of the accident well under the action of electromagnetic field can be very good. Evaluate the logging information; on the other hand, according...

Claims

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Application Information

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IPC IPC(8): G01V3/28
CPCG01V3/28
Inventor 李峰飞蒋世全党博刘容周建良李迅科张文辉李志强陈嘉辉党瑞荣
Owner CHINA NAT OFFSHORE OIL CORP
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